Bottle-stopper



(Model.)

B. W. P. NATTER.

BOTTLE STOPPER.

Patented Apr. 15, 1884.

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UNTTED TATES PATENT Fries.

ERNST \V.- F. NATTER, OF EVERETT, MASSACHUSETTS.

BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 296,995, dated April 15, 1884.

Application filed January 3, 1884. (Model) To all whom it may concern Be it known that I, ERNsr W. F. NATTER, of Everett, county of Middlesex, State of Massachusetts, have invented an Improvement in Bottle-Stoppers, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to means for stoppering bottles and securing the stopper in place over the mouth of the bottle and on its neck.

The invention consists, as hereinafter particularly set forth and claimed, of a cap having a rubber washer or plug loosely secured in a hole in its crown to be jammed in the mouth of the bottle, inclined grooves in the inner face of the cap to engagelugs on the bottle-neck to move, by rotation of the cap, said cap toward or from the bottle-mouth, and an annular internal projection in the cap to engage the washer or plug, to forcibly retain it seated, the cap so constructed being swiveled to the bottle-neck.

Figure l'in vertical section shows the neck of a bottle with my improved stopper applied thereto, the cap being in elevated position. Fig. 2 is a similar section, with the cap fully depressed to tightly close the bottle-neck. Fig. 8 represents the upper end or neck of the bottle, with the cap entirely removed. Fig. 4 is a top view of the cap, and Fig. 5 is an under side view thereof.

The neck of the bottle A, near its upper end, has one or more projections, a, which are adapted to enter notches 12, (see Fig. 5,) formed in the interior of the cap B, the said notches 3) leading into grooves 2), (shown in dotted lines,) extended annularly about the interior ofthe said cap, the said grooves being inclined, as clearly shown in Fig. 2, so that when the cap is rotated upon the neck of the bottle it will be forced downward or in the direction of the arrow 2, Fig. 1. The cap near its center is provided with a hole, d, through which is extended the central part or neck, 6, of an india-rubber plug or washer, f. The part c of the washer f has a head, 9, which serves to retain the washer loosely in position in the cap B. At its inner side the cap is provided with an annular rib or projection, h, which acts upon the upper side of the washer at a little distance back from its edge. The inside of the neck of the bottle is beveled, as at t, and the projection his so arranged with relation to the bevel i that as the cap is rotated and forced downward from the position occupied in Fig. 1 to that in Fig. 2 the washer f will be forced down into the beveled mouth of the bottle, and the said washer will be pinched firmly between the inner side of the bottle-mouth and the outer and lower portions of the said projection 71, thus making a perfectly air-tight joint, and the washer, being loosely connected with the cap, does not rotate with the latter as the washer is being forced into the bottleneck.

The cap B has attached to it two balls, 1a,.

which in turn are pivoted upon a metal ring or wire, a, which is placed about the bottleneck loosely, so that the said ring it may rotate about the bottle-neck as the cap B is rotatcd, and may also slide upon the bottle-neck between the projections o and the collar p, we tended outward from the said neck. The top of the cap is provided with two ribs, 24;, in line with the grooves bin the cap, so that the position of the groove may be indicated from the outside of the cap, which is of advantage when the cap is being applied to the bottleneck. I am aware that grooved caps adapted to be engaged with projections on the bottle-neck are old, and such cap has contained indiarubber washers dropped therein; but in no such case has the washer been provided with a neck and head and been forced down into the flaring open neck of the bottle, as herein shown.

I clain1.

The bottleneck provided with one or more projections, a, and the metal cap B, provided with a central opening, and with an inclined annular groove, 1), and the annular projection h, combined with a flexible or india-rubber washer having a neck and head, the neck being extended through the cap, the washer be ing held loosely in the cap, and acted upon by the annular projection, the latter forcing the flanged part of the washer down into-the neck of the bottle to close the same tightly, the cap rotating independently ofthe washer, all substantially as described.

In testimony whereof Ihavesigned my name to this specification in the presence of two subscribing witnesses.

Witnesses: ERNST V. F. NATTER.

J os. P. LIvERMoRE, B. J. NOYES.

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